9100 Kelvin!

For some reason, I interested about the white balance of a led at home. I measured it in a dark room: 9100 K!. I did some experiments. Here is one. I set the AWB 9100 K in the camera and took photos about a blue book and a yellow light on it. The light came from the led (in a dark room). Everything was OK: Beautiful blue and yellow as you see! I turned the led off and our normal lightning on (2800 K) - the photo was yellow in an ugly way!